Answer:
w= 7/4 +1/4 √89 OR w= 7/4 -1/4 √89
Step-by-step explanation:
2w^2-8w-1= (w-2)^2
Multiply (w-2)^2 by (-1)
2w^2-8w-1= -w+2^2
Add w to both sides
2w^2-7w-1= 4
Add 1 to both sides therefore that -1 cancels
2w^2-7w=5
Get the equation equal to 0 by subtracting 5 from both sides
2w^2-7w-5=0
Use the quadratic formula to solve
x= -(-7) plus or minus √(-7)-4(2)(-5)/2(2)
7 plus or minus √89/4
You should times each side by 3/2, so your answer is C.
Answer:
-1.5 or -6/4
Step-by-step explanation:
Im assuming the equation is 4x+6=0
1.) subtract the 6 from each side.
4x= -6
2.) you need to isolate the X, so divide the 4 from each side.
X= -6/4 or -1.5
The answer is C - 63.2 cm
